Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 17 Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria - Study Questions - Page 677a: 20

Answer

See the answer below.

Work Step by Step

$K_a=[H_3O^+][NH_3]/[NH_4^+]$ Applying the -log to both sides $pKa=pH-log([NH_3]/[NH_4^+])$ $[NH_3]/[NH_4^+]=1.77$ Mix them with a ratio of 1.77 mol of ammonia per mol of ammonium.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.